html{
	margin :15%;
}

.main{
	height:400px;
	padding:12px;
	/*display: flex;
	flex-direction: row;
	flex-wrap: nowrap;*/
	
	overflow: hidden;
}

.backbutton{
	height: 40px;
	width: 90px;

	padding: 5px;
	position: fixed;
	top: 15px;
	right: 15px;

	font-family: Roboto;
	font-size: 1.3vw;
	font-weight: bold;
	text-align: center;
	text-decoration: none;

	display: flex;
	justify-content: center; /* align horizontal */
	align-items: center; /* align vertical */
	
	background-color: white;
} 

a:link {
  text-decoration: none;
  color: black;
}

a:visited {
  text-decoration: none;
  color: black;
}

a:hover {
  text-decoration: none;
  color: black;
}

a:active {
  text-decoration: none;
  color: black;
}

.definition{
	width: 550px; 
	/*display: inline-block;*/
	position: absolute;

}

.def{
	font-family: times new roman; 
	font-weight: normal; 
	font-size: 2vw; 
				
	text-align: justify;
  	text-justify: inter-word;
  	position: absolute;
  	float: top;
  	/*top: 0;*/
  	padding: 0px;
}
.Dfirst{
	display: inline-block;
}
.Dsecond{ 
	display: none;
}


img{
	height: 500px;
	padding: 0px;
	outline: none;
}
.image{
	
	display: inline-block;
	padding: 5px;
}

.video{
	height: 400px;
	padding: 5px;
	display: inline-block;
}

.placeholder{
	position: absolute;

	height: 400px;
	width: 700px;

	/*overflow: hidden;*/

	background-color: #000000;

	border: 3px solid;
	border-color: red;
    color: #FFFFFF;

	/*padding: 3px;*/
	display: inline-block;
}

.change-content {
	cursor: pointer;
}
.change-content:hover {
	color: #ff0000;
}